Are Line Extensions Good or Bad?
The “form versus function” debate applies in many arenas, including marketing. Some marketers believe that product performance is the end all and be all. Other marketers maintain that the looks, feel, and other design elements of products are what really make the difference.
Take a position: Product functionality is the key to brand success versus product design is the key to brand success.
My textbook: Kotler P., Armstrong G., Adam and Denize. 2001. Principles of marketing. Pearson